马钢二铁高炉强化冶炼实践

对马钢二铁总厂高炉稳定顺行优化操作和强化冶炼实践进行了总结.通过采取强化原燃料管理、合理优化操作制度、保持良好操作炉型、加强设备管理等措施,实现了高炉较长周期稳定顺行.     

天铁2号高炉强化冶炼实践

介绍了天铁2号高炉大修后实行强化冶炼的实际生产情况。通过采取精料、优化装料制度，控制合适的初始煤气分布；优化操作制度，增加喷煤比以及高风温技术、低硅冶炼技术等措施，逐步完善了适合2号高炉生产特点的各项操作制度，保持了高炉长期的稳定顺行，确保2号高炉的各项经济技术指标跃上新的台阶。     

通钢4号高炉强化冶炼实践

对通钢4号高炉强化冶炼实践进行了总结。通钢4号高炉强化冶炼的主要经验是：采用富氧鼓风、喷煤、高风温、高顶压,并根据不同的原料条件和不同时期高炉的操作炉型,及时调整装料制度、送风制度、中部冷却器水温差,使高炉操作稳定顺行。     

马钢A高炉中修后提产降耗的措施

马钢A高炉中修开炉达产后不能长期稳定顺行,总是间断性地出现炉况波动,未能达到理想的指标要求。高炉操作人员及时转变操作思路,通过采取细化操作控制、强化出铁操作、优化上下部制度等措施,高炉顺行状况逐步改善,日均产量逐步提高,燃料消耗逐步下降。认为高炉生产指标长期达不到目标要求时,应该做好日常操作细节的控制,减少操作失误对炉况的影响;炉况波动期间,应以高炉稳定顺行为第一要务,不可急于强化冶炼。     

首钢1号高炉的强化操作

本文简述了首钢１号高炉的炉型与设备状况，分析了该炉强化冶炼过程，认为提高原燃料质量是强化冶炼的必要条件，合理的操作制度是使状况长期稳定顺行和获得较好冶炼效果的基本保证。     

3200m3高炉强化冶炼操作实践

基于钢铁企业生产成本压力日益加大，企业对铁产量的需求也越发急迫，只有长期稳定高产才能创造更大效益。而高炉顺行强化则是生产实践中非常重要的一环。原燃料质量管理是实现高炉顺行强化的基础，通过严抓高炉槽下筛分管理减少粉末入炉，保证原燃料质量稳定和对高炉上下部操作制度合理调整，河钢集团唐钢公司3 200 m³高炉逐步顺行，各项技术指标不断提升。生产中克服了炉役后期炉缸侧壁温度高而进行加钛矿护炉操作、高炉长期配吃20%左右落地烧结矿、原燃料质量波动等诸多不利因素影响，实现了高炉强化冶炼。在高炉强化冶炼实践过程中对炉役后期护炉条件下如何实现高产，上下部操作制度的匹配关系以及下部送风制度的基础作用都有了新的理解。总结出下部控制合理的“大风量、高风速、高动能”可以有效地活跃炉缸，提高高炉对原燃料质量的适应性，保持炉况长期稳定顺行和高效生产，同时活跃的炉缸工作状态是减少炉缸环流侵蚀，控制炉缸侧壁温度上涨的有效手段。     

降低2500m~3高炉铁元素消耗的生产实践

分析了承钢2 500 m3高炉铁元素消耗高的原因,认为钒钛矿冶炼造成渣中铁元素含量高和瓦斯灰吹出量高是高炉铁元素消耗高的主要原因。通过改善热制度、优化操作制度、强化高炉冶炼、稳定炉渣碱度、优化炉前操作、稳定煤气流、降低瓦斯灰吹出量等一系列措施,保证了高炉生产顺行及铁元素消耗的有效降低。     

宣钢1号高炉低风温操作实践

针对宣钢1号高炉长年存在低风温的不利条件,在分析低风温冶炼对高炉不利影响的基础上,总结近几年宣钢1号高炉的操作实践经验,通过优化上下部制度及强化操作,实现了高炉的稳定顺行和指标的优化,为同行提供了技术实践经验。     

杭钢1号高炉操作技术的进步

杭钢1号高炉通过操作技术进步，优化高炉操作，实施强化冶炼，优化煤气流分布，稳定炉体热负荷，实现炉况长周期的稳定顺行。     

梅钢1号高炉炉役后期操作实践

对梅钢1号高炉炉役后期在强化冶炼与高炉长寿方面所做的工作进行了总结分析,通过采用精料、优化操作制度以及合理维护等操作技术措施,1号高炉在炉役后期实现了稳定顺行生产,延长了高炉寿命。     

汽缸体产生的一些缺陷及修理

本文简析参照一些文献介绍汽缸体的一些问题、缺陷以及修复工艺。因此,要求汽缸体必须具有一定的耐磨性。其工作条件高温高压、且活塞在其中往复运动,摩擦很大,处于这样一个复杂的环境中可以确定经常发生一些问题。     

对洛钼集团所属尾矿库的调查

历时 30年的积累和发展 ,洛钼集团拥有 1 5座尾矿库。调查显示 :有的正在运行 ,有的已经闭库 ,有的还存在安全隐患。本文从安全、环保和白钨资源综合利用三方面对洛钼集团所属尾矿库的现状进行了分析 ,并针对有关问题提出了建议和对策     

硬质合金组合式轧辊在切分轧制中的应用

主要介绍了长治钢铁（集团）有限公司轧钢厂在节能降耗、挖潜增效工作中,应用国际行业先进的轧辊新技术,解决了切分轧制中影响产品质量和产量的关键问题,总结了应用硬质合金组合式轧辊新技术的成功经验,并提出了其中存在的问题和改进措施。     

Several problems about strain calculation and analysis and correction of related deviation

There exists many kinds of calculation models of plane and spherical strain fields, but the results of these models are different. The representative models was analyzed, and got some useful conclusions, in which some models are unbiased, some have deviations that can be corrected, some can only be used to compute strain in a uniform medium and can not be extended, and some can be used in the calculation and analysis of continuous strain field as well. Meanwhile, the correction relationship for spherical difference movement (displacement) computed from strain results was given, and the meaning of the non -differential term in spherical strain model was demonstrated.     

The Story of Some : Everyday Pragmatic Inference by Children and Adults.

The statement, some elephants have trunks, is logically true but pragmatically infelicitous. Whilst some is logically consistent with all, it is often pragmatically interpreted as precluding all. In Experiments 1 and 2, we show that with pragmatically impoverished materials, sensitivity to the pragmatic implicature associated with some is apparent earlier in development than has previously been found. Amongst 8-year-old children, we observed much greater sensitivity to the implicature in pragmatically enriched contexts. Finally, in Experiment 3, we found that amongst adults, logical responses to infelicitous some statements take longer to produce than do logical responses to felicitous some statements, and that working memory capacity predicts the tendency to give logical responses to the former kind of statement. These results suggest that some adults develop the ability to inhibit a pragmatic response in favour of a logical answer. We discuss the implications of these findings for theories of pragmatic inference. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Modified Sturm Sequence Property for Damped Systems

This technical note presents a method of checking the number of complex eigenvalues in some interested regions or the multiplicity of some complex eigenvalues for nonproportionally damped system. A Schur–Cohn matrix is constructed from the coefficients of the characteristic polynomial for the damped system, and LDLT factorized using some standard numerical algorithms. By observing signs of the diagonal elements of the above diagonal matrix D, we can determine the number of complex eigenvalues in some interested regions or the multiplicity of some complex eigenvalues, which is very similar to the well-known Sturm sequence property for undamped systems. To verify the applicability of the proposed method, two numerical examples are considered.     

A Personal Viewpoint on Training in Marital and Family Therapy.

In this article the author discusses some ideas about his philosophy of family therapy training, the place of the contextual approach in psychology, some of his experiences doing training in different settings, and some thoughts about national developments in family and marital therapy training. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

宝钢3号高炉炉体冷却系统的优化

宝钢3号高炉炉体冷却系统的先天不足，一定程度上造成炉体冷却壁水管破损过早、过多，严重影响到高炉的长寿。通过对冷却系统进行一系列的改进后，冷却壁水管破损减少，取得了积极的效果，确保了高炉正常稳定运行，延长了高炉寿命。     

关系代词That和Which引导的定语从句比较

英语定语从句可以由关系代词that和which引导。一般情况下，两种从句可以通用，但有时只能由that引导，有时只能由which引导。两种从句在句法分布和语义解释上存在着一定的差异。     

Pediatric hypertension

This review focuses on recent hypertension literature relevant to pediatrics. In the past year there have been some new recommendations for the evaluation of hypertension and some new ways to look at blood pressure norms in the pediatric population. Furthermore, several useful reviews concerning pediatric hypertension have been published. There have also been striking experimental breakthroughs in hypertension, some of which will eventually translate into clinical advances. The following sections summarize and discuss some areas in pediatric hypertension with a critical appraisal of recent papers.